import java.util.Scanner;
public class Example04{
    public static void main(String[] args){
        /*

        System.out.println("请输入您的名字:");
        String name = scanner.nextLine();
        System.out.println("您好,"+name+"!");
        */
        Scanner scanner = new Scanner(System.in);
        int a = scanner.nextInt();
        byte b = (byte)a;
        System.out.println("这是转换前的"+a);
        System.out.println("这是转换后的"+b);

    }
}